| 摘要 |
<p>A fray tester for evaluating fray resistance of surgical sutures is provided, which comprises a first and a second pulley rotatably adapted, in a spaced relation to each other, a tensioning weight, and a reciprocity driver. A suture having a first end portion, a second end portion and an intermediate portion is mounted in the fray tester such that the first end portion is subject to the tensioning weight, the intermediate portion is mounted to the first and second pulleys and defines a wrapped portion, the second end portion being connected to the reciprocating driver to cause the suture to rub against itself at a wrapped portion. The reciprocating driver includes a rotating wheel connected to a motor to for providing the reciprocating movement to the suture to be tested. The tester may further include a revolution counter for-counting and displaying the number of reciprocating cycles at the time the suture breaks or seizes.</p> |
